Electronic receiver-controller with storage unit



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ELECTRONIC RECEIVERCONTROLLER WITH STORAGE UNIT 19 Sheets-Sheet 7 Original Filed July 24, 1959 INVENTORS EDWARD E KLE/NSC/lM/DT DAY/ FFe/ck QQNHIE T llllllll IIL zocbuw Jomkzou F l m k l mww L ATTORNEYS Dec. 19, 1967 E, KLEmSCHMlDT ETAL 3,359,368.

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ELECTRONIC RECEIVER-CONTROLLER WITH STORAGE UNIT 19 Sheets-Sheet 19 riginal Filed July 24, 1959 2. 9qmm 0 5 T 6 mm H m w m E 5 0 v N w w N wk mwhlh r F 7 P R A m v w v mmd ozizjm .MD4 M .UZ W

o mm M55535 uzgwmoz amide uni. wziut w Z mm United States Patent 3,359,368 ELECTRQNIC RECEIVER-CONTROLLER WITH STORAGE UNIT Edward F. Kleinschrnidt, Fort Lauderdale, Fla., and David F. Frick, Palatine, Ill., assignors to SCM Corporation, New York, N.Y., a corporation of New York Uriginal application July 24, 1959, Ser. No. 829,446, 110W Patent No. 3,150,235, dated Sept. 22, 1964. Divided and this application Nov. 22, 1963, Ser. No. 325,718

19 Claims. (Cl. 17889) ABSTRACT OF THE DISCLOSURE An electronic coded signal receiving system with a receiving portion which receives coded element signals, whether in sequential or simultaneous element form, a storage portion which can store received coded signals and a controller portion enabling system operation including processing and utilization of the stored coded signals. The receiving portion includes a line current operated input signal multivibrator circuit with an associated signal transformer and full wave rectifier isolating the line DC. from the receiving system components as well as a sequential to simultaneous coded signal convertor. The receiving portion connects through the storage portion to the controller portion which has demand read-out control over the storage portion responsive to further processing of the coded signals. The storage package has plural storage registers to provide a normal storage lag between receipt of signals and further processing and can include an auxiliary multiple channel storage unit connected between normal storage registers enabling storage, of, e.g., up to twenty additional coded signals, between receipt and further processing of the coded signals. The auxiliary storage unit has input and output controllers which direct storage and retrieval of excess code signals in identical sequence, i.e., it is a first-in, first-out storage unit.

This is a division of copending United States application Ser. No. 829,446, filed July 24, 1959, now Patent No. 3,150,235.

This invention pertains to telegraph receiving apparatus and more particularly to the receiving, controlling and storage units of a tape type receiving printer-reperforat0r combination capable of receiving code impulse combinations and recording visual representations of corresponding characters at any speeds up to at least 4500 operations per minute.

Although there are presently known many high speed printers as well as high speed reperforators, there are no printer-reperforators performing both functions at speeds higher than 600 operations per minute (368.1 operations per minute being the normal speed for telegraph apparatus). The primary purpose behind the development of the present invention and one which has been successfully accomplished by the invention was to provide a printer-reperforator apparatus that would punch a coded message on a tape, print this same identical message on one edge of the tape, and to accomplish both of these functions at the exceptionally high speed of 4500 operations per minute (this is 75 operations per second) and still retain reliability of operation over extended periods of time. It was desired to develop and construct such a high speed typing reperforator as a production model for use in fixed plant and military installations. In accomplishing this development, it was determined that selection and operation of the printing and perforating functions would be mechanical under the control of an electronic signal receiver and controller. The electronic receiver selector, storage unit and controller combination is unique, particularly in connection with its functioning and operation in control relationship with the mechanical perforating and printing mechanisms employed.

The electronic receiver selector storage and controller unit is capable of operational speeds many times higher than that of the mechanical printer and therefore must have some form of built-in delay control. Means are provided for storing backed-up signals which, at times, the printer will not be able to process because of an inherent range of operational function time between various ones of incoming signals to give a higher average number of operations per minute.

As has been described in the detailed description of the aforenoted parent application, the mechanical operational time depends upon the sequence in which the characters corresponding to the Baudot Code combination signals are being received. Some sequences of characters can be printed at maximum operational rates of 40 operations per second whereas others can be received and processed by the mechanical mechanism at operational speeds of up to 160 operations per second. Accordingly, the electronic receiver selector and controller is arranged to receive at operations per second, an average speed which the mechanical printer-reperforator will normally be able to handle with a calculated back-up in the storage unit of no more than 20 characters. It is for this reason that a storage unit has been incorporated in the electronic mechanism. There are also means to bypass the storage unit if the incoming signals are being received at a rate no greater than 40 operations per second which the mechanical unit can take under the most adverse conditions with no back-up of signals.

Accordingly, the principal object of the present invention resides in the provision of a coded signal message receiving system having novel electronic receiving and control apparatus.

A further object, in conjunction with the preceding object, resides in the combination of the receiving and control apparatus for use with a mechanical recorder which has a range of maximum recording time depending upon a best and a worst reception sequence of characters and an optionally connected electronic storage device within the electronic controller section of the receiver apparatus adapting the controller to receive at a higher speed than the worst maximum recorder speed for the mechanical recorder, any back-up of signals between the recorder and controller being stored at random intervals in the electronic storage device.

A further object resides in providing a novel high speed code signal receiving apparatus including an electronic unit capable of receiving groups of incoming electrical code signals in either sequential or simultaneous form and converting such signals to simultaneous output channels, and an electronic controller unit including a search register enabling control of the electronic unit responsive to coded signal processing rate.

Another object resides in the provision of a novel line oscillator which completely isolates the receiver in the reperforator and printer apparatus from the incoming transmission line.

A still further object resides in the provision of a novel time base generator control circuit having a variable range control and optional RC circuits to operate the present invention on existing lines having different signal transmission rates.

Still another object resides in the provision of novel first and second register storage units in a telegraph receiver controller adapted for optional use of an auxiliary storage unit therebetween to momentarily store code sig- 

1. IN COMBINATION WITH A COMMUNICATION SYSTEM INCLUDING MEANS FOR RECEIVING CODED WORD SIGNAL MESSAGES; FIRST AND SECOND SIGNAL STORAGE REGISTERS EACH HAVING SEPARATE CORRESPONDING SIGNAL ELEMENT CHANNELS; A FIRST-IN, FIRST-OUT STORAGE UNIT CONNECTED BETWEEN OUTPUT TERMINALS ON SAID FIRST STORAGE REGISTER AND INPUT TERMINALS ON SAID SECOND STORAGE REGISTER AND ADAPTED TO RECEIVE INCOMING SIGNALS AT RANDOM RATES; MEANS SUPPLYING INPUT CODED WORD SIGNALS TO SAID FIRST STORAGE REGISTER; MEANS CONNECTED TO THE OUTPUT OF SAID SECOND STORAGE REGISTER TO PROCESS SAID CODED WORD SIGNALS AT A VARYING RATE DEPENDENT UPON THE SEQUENCE OF WORDS RECEIVED; AND MEANS RESPONSIVE TO THE PROCESSING OF ONE CODED WORD SIGNAL FOR RETRIEVING THE NEXT CODED WORD SIGNAL FROM SAID STORAGE UNIT. 